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Article
Publication date: 26 July 2023

Hamdy Mohamed Mohamed and Wael Sabry Mohamed

The study aims to assess the efficiency of nanocomposite to improve the properties of gap-filling materials for pottery artifacts.

Abstract

Purpose

The study aims to assess the efficiency of nanocomposite to improve the properties of gap-filling materials for pottery artifacts.

Design/methodology/approach

Five different pastes were used in the laboratory studies. The pastes consist mainly of pottery powder (grog), dental plaster, microballoons and an adhesive of Primal AC33, nano-silica and nano kaolinite in various concentrations. The prepared samples were subjected to accelerated heat and light aging. Besides, some investigations were used to evaluate the efficacy of the additive nanomaterials, such as TEM, digital and scanning electron microscopy microscopes. Contact angle, color change, shrinkage degree, physical properties and compressive strength tests were also conducted.

Findings

The results indicated that using Nano-silica considerably improves the mechanical strength and decreases the shrinkage of gap-filling materials. According to the results, a mixture of grog, microballoons and Primal AC33/Nano-silica Nanocomposites is the optimal gap-filling paste for archaeological pottery. Moreover, this paste showed a higher contact angle (120°), lower color change (ΔE = 2.62), lower shrinkage (3.3%), lower water absorption (3.36%), lower porosity (5.05%) and higher compressive strength (5124 N/mm2).

Originality/value

This paper attains to develop an economic polymer-nanocomposite that can be used with gap-filling materials for pottery artifacts.

Details

Pigment & Resin Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 7 September 2012

Ulrich Magnus

The purpose of this article is to compare the methods of interpretation and gap filling in the United Nations Sales Convention (CISG) and in the Draft Common European Sales Law…

995

Abstract

Purpose

The purpose of this article is to compare the methods of interpretation and gap filling in the United Nations Sales Convention (CISG) and in the Draft Common European Sales Law (CESL). In particular, it aims to examine whether the established interpretation and gap filling method of the CISG can and should be used for the CESL.

Design/methodology/approach

The article looks at the method by which international case law and doctrine interpret the CISG and fill its gaps. The article compares this method with the method that is provided for in the CESL instrument but has to be implemented.

Findings

It is suggested that despite its nature as European community law, CESL should be interpreted in a broad international way since it does not only cover internal EU sales, but also transactions involving parties from outside the EU. For this reason its interpretation and gap filling should follow the method of the CISG so as to interpret similar provisions in a similar way in order to harmonize law within and outside the EU.

Research limitations/implications

Both the CISG and CESL intend to unify legal traditions or different legal systems; the CISG tries to harmonize globally what CESL tries to harmonize regionally. It is important that these two instruments complement one another by the avoidance of divergent interpretations of similar provisions. It would helpful for further research to assess whether and how two decades of experience with the CISG can be used in the interpretation and application of CESL.

Practical implications

CESL's interpretation provision, if it is enacted, is unlikely to change from the current version. The way CESL is interpreted and how its gaps filled will determine its practical significance as a viable opt‐in national law. It is therefore necessary to develop in advance the right interpretive methodology if CESL is to become a meaningful alternative instrument.

Originality/value

The article suggests that the CESL should not be interpreted in the traditional way European community law is interpreted, but, instead, be interpreted under a broad international perspective. It also advances the idea of interconventional interpretation by which the CISG would guide the interpretation of similar provisions found in CESL.

Article
Publication date: 4 February 2014

Jiangnan Qiu, Zhiqiang Wang and ChuangLing Nian

The objective of this paper is to propose a practical and operable method to identify and fill organisational knowledge gaps during new product development.

2154

Abstract

Purpose

The objective of this paper is to propose a practical and operable method to identify and fill organisational knowledge gaps during new product development.

Design/methodology/approach

From a microscopic view, this paper introduces the tree-shaped organisational knowledge structure to formalise the knowledge gaps and their internal hierarchical relationships. Based on the organisational knowledge structure, organisational knowledge gaps are identified through tree matching algorithm. The tree-edit-distance method is introduced to calculate the similarity between two organisational knowledge structures for filling knowledge gap.

Findings

The proposed tree-shaped organisational knowledge structure can represent organisations' knowledge and their hierarchy relationships in a structured format, which is useful for identifying and filling organisational knowledge gaps.

Originality/value

The proposed concept of organisational knowledge structure can quantify organisational knowledge. The approach is valuable for strategic decisions regarding new product development. The organisational knowledge gaps identified with this method can provide real-time and accurate guidance for the product development path. More importantly, this method can accelerate the organisational knowledge gap filling process and promote organisational innovation.

Details

Journal of Knowledge Management, vol. 18 no. 1
Type: Research Article
ISSN: 1367-3270

Keywords

Article
Publication date: 1 October 1972

T. Brimelow

The system of education for information work and librarianship in this country has been essentially a pragmatic development. The cynic may say accidental or even chaotic and to…

Abstract

The system of education for information work and librarianship in this country has been essentially a pragmatic development. The cynic may say accidental or even chaotic and to some extent this is true, but it would also be unfair to the organizations and institutions involved. The development of education may appear to have been a gap‐filling exercise in that the various institutions have reviewed the scene from time to time and have provided educational services or courses of one kind or another not previously in existence. The build‐up of the system has therefore been subejcted to an informal consensus and co‐ordination.

Details

Aslib Proceedings, vol. 24 no. 10
Type: Research Article
ISSN: 0001-253X

Book part
Publication date: 7 July 2015

Dirk Lindebaum

The processes that underlie ability emotional intelligence (EI) are barely understood, despite decades of management research. Furthermore, the outcomes of these processes have…

Abstract

The processes that underlie ability emotional intelligence (EI) are barely understood, despite decades of management research. Furthermore, the outcomes of these processes have been narrowly and prescriptively defined. To address this deficiency, I conducted a phenomenological study (n = 26). Findings from a public sector sample suggest that the underlying emotional processes of meaningful life events are – at least for now – better defined through the construct of emotion regulation. While it is part of the ability EI model, the emotional processing that occurs prior to emotion regulation being initiated is likely to be less consistent with current EI theory. Likewise, these processes lead to outcomes considerably more nuanced than currently appreciated in the EI literature. Consequently, what started as a gap-filling approach to research eventually turned into a problematization of what scholars seem to know about EI. I outline the theoretical and practical implications of this study for management, and offer suggestions for future research.

Details

New Ways of Studying Emotions in Organizations
Type: Book
ISBN: 978-1-78560-220-7

Keywords

Book part
Publication date: 1 October 2007

Mostafa Beshkar and Eric W. Bond

We survey several of the theoretical models that have been applied to the analysis of the GATT/WTO dispute settlement process. These include repeated game models, which emphasize…

Abstract

We survey several of the theoretical models that have been applied to the analysis of the GATT/WTO dispute settlement process. These include repeated game models, which emphasize the punishment aspect of dispute settlement, and incomplete contracting models, which emphasize the “gap-filling” aspect. Our analysis emphasizes the implications of these models for the strengthening of the dispute settlement process under the WTO and for its application to the TRIPS agreement. We also discuss how models of settlement bargaining can be applied to obtain empirical predictions about which cases will actually proceed to an actual finding by the dispute panel.

Details

Intellectual Property, Growth and Trade
Type: Book
ISBN: 978-1-84950-539-0

Book part
Publication date: 13 August 2014

Roy Montgomery

Between September 4, 2010 and mid-2013 a severe earthquake sequence struck Christchurch, the second largest city in New Zealand, causing multiple fatalities and the destruction of…

Abstract

Between September 4, 2010 and mid-2013 a severe earthquake sequence struck Christchurch, the second largest city in New Zealand, causing multiple fatalities and the destruction of much of the central business district. Large areas of suburban residential housing were condemned with the prospect that entire neighbourhoods would be abandoned for several decades if not permanently. The recovery and rebuilding process was immediately placed high on central and local government agendas since Christchurch and the surrounding Canterbury region were and continue to be seen as crucial to the security and stability of the national economy. Programmes for recovery developed initially relied principally on one-off funding packages and strategies from central government, local government recovery plans and the settlement of commercial insurance claims. There remains, however, the spectre of Christchurch as a city of demolition sites and vacant lots for the best part of a decade if not longer. Furthermore, although local and national Civil Defence and Emergency Management systems were activated during the most severe seismic events the response operations did not always reach those in need as promptly as was expected. Residents in a number of communities and neighbourhoods are now conscious that when disaster strikes they are still likely to have to fend for themselves. This chapter documents and evaluates two specific “gap-filling” responses to the Christchurch earthquakes over a three-year period. The first response considered is a community-based project called “Greening the Rubble” which took root in October 2010 as the prospect of a central city of vacant lots and car parks worried a number of volunteers into action to temporarily cheer up empty public and private sites with pocket parks, native plant displays and cultural interventions. The second initiative scrutinised, the “Mt Pleasant Community Response Plan 2012–2013,” is one of the first community-based emergency response plans to emerge that has sought to complement official civil defence planning arrangements. Both responses are discussed in detail in the context of constantly changing and evolving hazardscapes and socio-economic and political conditions.

Details

Risks and Conflicts: Local Responses to Natural Disasters
Type: Book
ISBN: 978-1-78190-821-1

Keywords

Book part
Publication date: 11 December 2006

Janet T. Landa

The phenomenon of the ethnically homogeneous middleman group (EHMG) or ethnic trade network – the Chinese merchants in Southeast Asia, the Gujarati-Indians merchants in East…

Abstract

The phenomenon of the ethnically homogeneous middleman group (EHMG) or ethnic trade network – the Chinese merchants in Southeast Asia, the Gujarati-Indians merchants in East Africa, the Jewish merchants in medieval Europe, etc. – is ubiquitous in stateless societies, pre-industrial and in less-developed economies (Curtin, 1984). Neoclassical (Walrasian) theory of exchange cannot explain the existence of merchants let alone the phenomenon of the EHMG. This is because Neoclassical theory of exchange is a static theory of frictionless, perfectly competitive markets with the Walrasian auctioneer costlessly coordinating the plans of anonymous producers (sellers) and consumers (buyers) so as to achieve equilibrium. There is no role for merchants in the Neoclassical theory of exchange.

Details

Cognition and Economics
Type: Book
ISBN: 978-1-84950-465-2

Article
Publication date: 18 January 2024

Uğur Kemiklioğlu, Sermet Demir and Caner Yüksel

Adhesively bonded joints are used in many fields, especially in the automotive, marine, aviation, defense and outdoor industries. Adhesive bonding offers advantages over…

Abstract

Purpose

Adhesively bonded joints are used in many fields, especially in the automotive, marine, aviation, defense and outdoor industries. Adhesive bonding offers advantages over traditional mechanical methods, including the ability to join diverse materials, even load distribution and efficient thermal-electrical insulation. This study aims to investigate the mechanical properties of adhesively bonded joints, focusing on adherends produced with auxetic and flat surfaces adhered with varying adhesive thicknesses.

Design/methodology/approach

The research uses three-dimensional (3D)-printed materials, polyethylene terephthalate glycol and polylactic acid, and two adhesive types with ductile and brittle properties for single lap joints, analyzing their mechanical performance through tensile testing. The adhesion region of one of these adherends was formed with a flat surface and the other with an auxetic surface. Adhesively bonded joints were produced with 0.2, 0.3 and 0.4 mm bonding thickness.

Findings

Results reveal that auxetic adherends exhibit higher strength compared to flat surfaces. Interestingly, the strength of ductile adhesives in auxetic bonded joints increases with adhesive thickness, while brittle adhesive strength decreases with thicker auxetic bonds. Moreover, the auxetic structure displays reduced elongation under comparable force.

Originality/value

The findings emphasize the intricate interplay between adhesive type, bonded surface configuration of adherend and bonding thickness, crucial for understanding the mechanical behavior of adhesively bonded joints in the context of 3D-printed materials.

Details

Rapid Prototyping Journal, vol. 30 no. 3
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 9 May 2016

Rejaul Hoque Bepary, Dadasaheb D. Wadikar and Prakash E. Patki

The purpose of this paper was to analyse the present status of the information available on rice bean [Vigna umbellata (Thunb.)] cultivars with respect to its nutritional and…

Abstract

Purpose

The purpose of this paper was to analyse the present status of the information available on rice bean [Vigna umbellata (Thunb.)] cultivars with respect to its nutritional and functional characteristics. It is one of the non-conventional and under-utilized beans of South and Southeast Asia. In northeastern regions of India, it is an important crop for shifting cultivation or kitchen garden which is consumed as vegetable (tender pod) and pulse. The information gaps filling could be useful for several work proposals and for consumers and cultivators to know the nutritional strength and varied usability of the grain which in-turn can help in its commercialization.

Design/methodology/approach

The approach to information collection was emphasized on nutritional strength of the grain compared to other beans of Vigna family and the varied usability among the rice bean varieties of the Himalayan Belt.

Findings

The average carbohydrate, protein, fat, crude fibre and ash content of 75 genotypes of rice bean was found 59.96 ± 2.81, 20.78 ± 2.65, 1.74 ± 1.42, 5.07 ± 1.17 and 4.44 ± 1.03 per cent, respectively. It has high quality protein with all essential amino acid in balance manner. Among the minerals, it contains calcium, iron, zinc and potassium with high bio-availability of calcium (59.8 ± 0.3 per cent). The factors such as flatulence producing saccharides, trypsin inhibitors, polyphenols, phytic acid, saponin and tannins of rice bean were reported to be in the range of 3.28-5.87 per cent, 55.12-163.98 TIU/g, 0.58-1.82 1.88-8.17, 1.2-3.1 and 0.24-1.55 per cent, respectively. The toxic compounds such as hydrogen cyanide (0.09 mg/100 g) and L-3, 4-dihydroxyphenylalanine (0.36 mg/100 g) is lowest in rice bean. The nutritional advantages of rice bean over the other beans of Vigna family were required to emphasize to induce interest among the researchers, producers and consumers.

Research limitations/implications

In view of the recommended daily requirements with respect of amino acids, vitamin-B and minerals, rice bean could be a major component of the diet to fulfill them. However, the scanty information available on nutritional and functional components of rice bean varieties grown in northeastern India calls for the gap filing research to explore full potential of the bean.

Originality/value

The information about differences among the northeastern varieties of rice bean available on nutritional functional components essentially required the updating of research data to explore full potential and utility of the bean.

Details

Nutrition & Food Science, vol. 46 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

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